Shoe upper



FIG. 1 is a top plan view of a shoe upper showing our new design;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a right elevational view thereof; and,

FIG. 4 is a front elevational view of a shoe upper showing our new design.

Broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 